Engine noise between 2000 & 2500RPM

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Jul 15, 2009 | 08:47 AM

#11

tibadoe

Stellar HDF Member

Joined: Jun 2009

Posts: 2,217

Likes: 53

From: Gladys, VA

At your first sevice change to syn oil. It helped some on mine.

Jul 15, 2009 | 11:54 AM

#12

brihvac

Thread Starter

Road Warrior

Joined: Jul 2007

Posts: 1,462

Likes: 22

From: Delaware

Quote:

Originally Posted by tibadoe

At your first sevice change to syn oil. It helped some on mine.

Im going to have them use my Amsoil

Jun 16, 2019 | 03:28 PM

#13

Jeremy Belko

Cruiser

Joined: Jun 2019

Posts: 100

Likes: 40

From: merrillville, in

I’m having similar issues with my M8 softail. Almost sounds like primary noise. I’ll take it to dealer early next week and let them take it for s quick spin and get their opinion. Anyone else with similar on a M8

Jun 16, 2019 | 04:21 PM

#14

rsking45

Road Warrior

Joined: Jul 2013

Posts: 1,399

Likes: 92

From: ny

Mine has had noise between 2000- 3000 rpm sence new. It been dynoed a few times tried different lifters,different preload on push rods, Different brands of oil and.noise is still there. Its deffently quieter with non synthetic oil.
I have been told by many it's normal. Twin cams make noise. Just make sure that's not a exhaust leak.

Jun 16, 2019 | 11:57 PM

#15

dickey

Seasoned HDF Member

Joined: Mar 2010

Posts: 19,982

Likes: 6,111

From: Florida

I've had a number of bikes that made that noise at that RPM, including my current RoadKing. Never had a problem.

Jun 17, 2019 | 12:04 AM

#16

Nitro 54

Road Master

Joined: Sep 2014

Posts: 979

Likes: 83

From: S.W. Oregon

I just take out my hearing aids and then it sounds just right

Jun 17, 2019 | 06:58 AM

#17

ROCKOUT Rocker Products

Sponsor

Joined: Jul 2015

Posts: 8,538

Likes: 1,646

From: SF Bay area

Quote:

Originally Posted by rsking45

There is a cure for twin cams (see my website)

For the M8 Harley originally had the same top end arrangement as the TC engine. Before final production they changed to a system where the bolt goes through the shaft rather than next to it. This stopped the rocker shaft tapping.

Did I mention they had my product in hand while developing the M8?

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